Woven wire belt



Feb. 16, 1932. E, F, P|NK 1,845,935

WOVEN WIRE BELT Filed Sept. 5, 1930 2 Sheets-Sheet l w @/m/ v www NNNNNNOR TTTTTTT V- Feb. 16, 19'32 I E. F. PINK 1,845,935

WOVEN WIRE BELT Filed Sept. 5. 1930 2 Sheets-Sheet 2 Patented Feb. 16,1932 PATENT OFFICE EDWARD F. PINK, 0F CAMBRIDGE, MARYLAND WOVEN W'IREBELT Application led September 5, 1930. Serial No. 479,996.

This invention relates to im rovements in woven wire belts or apronsibrmed of interwoven spiral wire colls, the general object of theinvention being to so construct and arrange the parts as to balance thestrain set up during the operation of the belt and thus prevent beltdistortion.

The present invention is an improvement over that forming the subjectmatter of a patent granted to me on April 2, 1929, No. 1,707,567.

This invention also consists in certain other features of constructionand in the combination and arrangement of the several parts, to behereinafter fully described, illustrated in the accompanying drawingsand speciiically pointed out in the appended claims.

In describing the invention in detail, reference will be had to theaccompanying drawings wherein like characters denote like orcorresponding parts throughout the several views, and in W ich A F ig. lis a face view of portion of the improved belt or apron;

Fig. 2 is a similar view, but showing the` two longitudinal sections ofthe belt separated; and

Fig. 3 is a diagrammatic view showing how the various sections of thebelt act to prevent distortion.

As shown in these views, the belt or apron is formed of the twolongitudinal sections C and D. Each section is composed of a pluralityof sections, alternate sections of the' longitudinal section C beingindicated by the letter A and the remaining `sections by the letter B,while the alternate sections of the longitudinal section D are indicatedby the letter A' and the remaining sections by the letter B. Eachsectionof each longitudinal section is composed of a plurality ofhelical wires 1 which extend transversely of the belt,

the convolutions of each member 'or wire bein interlocked or interwovenwith the convolutions of the adjacent wires. rlhe outer and innerportions of these convolut1ons form dia onal ribs on the outer andinner, side of `the elt, the ribs at theinner side orfsurface bearing onthe supporting drums or pulleys,

while the ribs on the outer surface support the articles or materialbeing conveyed by the belt... Each pair of wires is connected togetherat their ends in any suitable manner, such as by welding or the like, asshown at 2. The helical members of each section of each of thelongitudinal sections are reversely arranged to those ofthe adjacentsections of the longitudinal section so that the outer and inner ribs ofone section extend in an opposite di rection 'from the outer and innerribs of the adjacent sections. In other words, the helical wires of thesection A or A are reversely arranged to the helical wires of thesections B or B and the two sections C and D are so placed that thehelical members of each section of one of the longitudinal sectionsarereversely arranged to the opposing sections of the other longitudinalsection.

The drawings show the sections of the longitudinal sections connectedtogether by the cross rods 3, cach rod connecting together two of thesections of one longitudinal section and the opposing sections of theother longitudinal section. The ends of the rods are suitably connectedwith the edges of the belt, as shown at 4. The sections of eachlongitudinal section, however, may be connected together in any othersuitable manner.

Figure l shows the wires of the longitudinal sections connected togetherby welding, as shown at 5, but these wires can be connected together inany other suitable manner or they may be separated or not connectedtogether, as shown at 6 in Figure 2.

7While the drawings show a belt constructed of two longitudinalsections, it will, of course be understood that the belt may be composedof ay plurality of longitudinal sections, if desired. i

v Thus it will be seen that I have provided a belt composed of a pair oflongitudinal sections, with each section composed of lsmall sectionssuitably connected together with the wires of alternate 'small sectionsbeing reversely arranged to the wires of the other sections and thewires of each" smally section being reversely arranged to the wires ofthe opposing small section of the other longitudinal section of thebelt.y

In order that a spiral wire belt may be prevented from displacing`itself by crawling or creeping edgewise upon the driving drums, pulleysand other supports, it is essential that right and left directionspirals be used. As such a belt in its operation comes in frictionalcontact with its supports, the sections are continually endeavoring tomove in opposite directions so that there are two forces set up whichare continually opposing one another. Such forces tend to separate thesections and where the separation is prevented, as by fastening theadjacent ends of the sections together, as shown in my before mentionedpatent, the coils of the spirals tend to spread so that the width of thebelt is increased. In order to prevent the sections from spreading orthe coils spreading and increasing the width ofthe belt, I constructthey belt as above described, which arrangement sets up four opposingforces and two like forces, instead of the usual two opposing forces.This is illustrated in Figure 3, where the tendency of section A to movein the direction of the arrow b is opposed by the to move in the di-`tendency of the section A rection of the arrow b2 and the tendency ofthe section B to move in the direction of the arrow b3 is opposed by thetendency of the section B to move in the direction of the arrow b4. Thusthe force b opposes b2 in an outward transversal direction, b3 opposingb4 in an inward transversal direction, b3 opposing b in a lateraldirection and b4 opposing b2 in an opposite lateral direction, bcomplementing b4 and b2 complementing b3 in `direction. Thus the twolongitudinal sections C and D are prevented from continually endeavoringto separate at their point of connection indicated by the line c andthere is no abnormal strain upon the points of connection. Also, thespirals of the two longitudinal sections are prevented from lengthening,which would increase the width of the belt. It will be seen that by thuscrossing the forces or by reason of having created a new pair of forces,I have counteracted the existing or original pair of forces so that theyare actu'- ally shattered or broken up in a manner that prevents anyabnormal strain of one section against another and, therefore,preventing belt distortion. i

It is thought from the foregoing description that the advantages andnovel features of the invention will be readily apparent.

It is to be understood that changes may be made in the construction andin the combination and arrangement of the several parts, provided thatsuch changes fall within the scope of the appended claims.

1. A wire belt composed of a number of longitudinally extendingsections, each section being formed of small sections connectedtogether, each section being composed of helical members extendingcrosswise of the section and interlocking, the members of alternatesmall sections of each longitudinal section being reversely arranged tothe members of the other small sections of said longitudinal section,and the helical members of each small section of one longitudinalsection being reversely arranged to the opposing small section of theother longitudinal section.

2. A wire belt composed of a number of longitudinally extendingsections, each section being formed of small sections connectedtogether, each section being composed of helical members extendingcrosswise of the section and interlocking, the members of alternatesmall sections of each longitudinal section being reversely arranged tothe members of the other small sections of said longitudinal section andthe helical members of each small section of one longitudinal sectionbeing reversely arranged to the opposing small section of the otherlongitudinal section, and means for rigidly and permanently uniting theadjacent edges of the longitudinal sections.

` 3. A wire belt composed of a number of longitudinally extendingsections, each sec'- tion being formed of small sections connectedtogether, each section being composed of helical members extendingcrosswise of the section and interlocking, the members of alternatesmall sections of each longitudinal section being reversely arranged tothe members of the other small sections of said longitudinal section andthe helical members of each small section of one longitudinal sectionbeing reversely arranged to the opposing small section of the otherlongitudinal section, means for rigidly and permanently uniting theadjacent edges of the longitudinal sections, and rods connecting thesmall sections of the longitudinal sections together.

4. A wire belt composed of a number of longitudinally extendingsections, each section being formed of small sections connectedtogether, each section being formed of helical members extendingcrosswise of the section and interlocking, the members of alternatesmall sections of each'longitudinal section being reversely arranged tothe members' of the other small sections of said longitudinal sectionand the helical members of each small section of one longitudinalsection being reversely arranged to the opposing small section of theother longitudinal section, and rods connecting the small sections ofthe longitudinal sections together, each rod uniting a pair of smallsections of the longitudinal sections.

5. A wire belt composed of a number of longitudinally extendingsections, each section being formed of small sections, each sectionbeing composed of helical members extending crosswise of the section andinterlocking,'the members of alternate small sections of eachlongitudinal section being reversel arranged to the members of the othersma l sections of said longitudinal section and the helical members ofeach small section of one longitudinal section being reversely arrangedto the opposing small section of the other longitudinal section, andmeans connecting the small sections of the longitudinal sectionstogether.

6. A Wire belt composed of a number of longitudinally extendingsections, each section being formed of small sections, each sectionbeing composed of helical members extending crosswise of the section andinterlocking, the members of alternate small sections of eachlongitudinal section being reversely arranged to the members of theother small section of said longitudinal section and the helical membersof each small section of one longitudinal section being reverselyarranged to the opposing small section of the other longitudinalsection, means for rigidly and permanently uniting the adjacent edges olthe longitudinal sections, and means connecting the small sections ofthe longitudinal sectionsftogether.

T. A wire belt composed of a number of longitudinally extendingsections, each section formed of small sections, each section beingcomposed of helical members extending crosswise of the section andinterlocking, the members of alternate small sections of eachlongitudinal section being reversely arranged to the members of theother small sections of said longitudinal section and the helicalmembers of each small section of one longitudinal section beingreversely arranged to the opposing small section of the otherlongitudinal section, and rods hinging the small sections of thelongitudinal sections together.

ln testimony whereof I affix my signature.

EDWARD F. PINK.

